The amount of speculation that has gone into what these spin-offs could be about is roughly equal to the size of the Wall, but nobody truly knows what's going to happen — and the writers are certainly not divulging anything. However, here to save us from speculation crisis is animator named Patrick McCarthy, who has just released an animated short film that may give viewers an idea of what we could expect in these spin-offs. The video is 20 minutes long and gives a bit of insight into one of A Song of Ice and Fire's biggest mysteries: the Doom of Valyria.

The Doom of Valyria, according to Martin himself, was a cataclysmic event that led to the collapse of the Valyrian Freefold, which at the time was being tended by the Targaryens. Long story short, it was the event that eventually led to the Targaryens conquering Westeros.

If you haven't seen the video yet, you can check it out down below:

According to McCarthy, it took him two years to create this video. He did also acknowledge that it is in no way tied to the current HBO show; however he hopes that this might inspire the #GameOfThrones writers to make it the focus of one of the spin-offs.

If the Doom of Valyria were to have its own show, then it would shine a bit of light on a fascinating subject that was only mentioned in passing in Season 5 of Game of Thrones in a conversation between Tyrion Lannister and Jorah Mormont.

As they travelled through Old Valyria, they talked about the events that led to the downfall of the once great city. At one point, Jorah sums up the entire event in one sentence:

"A city of a thousand years, and all that men had learned, the Doom consumed it all."

Watch the scene below:

Speculation about what the spin-offs will be about has ranged from an exploration of Khal Drogo's past to Robert's Rebellion, and even the story of Rhaegar Targaryen. However, if the showrunners were to make a show focused solely on this event, it could give some more insight on the history of the Targaryens for those who may not have read the books.

However, until plans are set in stone, everything is up for speculation. But if these spin-offs are meant to give a bit of a history of the events that took place before the show, then the Doom of Valyria would most definitely be one that could spark the fans' interest faster than dragon fire.

So, what do you think? Do you want to see a spin-off based on the Doom of Valyria? What would you like to see be the subject of a Game of Thrones spin-off? Sound off in the comments and let me know!